TITLE:
Partial Discharge Source Classification and De-Noising in Rotating Machines Using Discrete Wavelet Transform and Directional Coupling Capacitor
AUTHORS:
Mohammad Amin Kashiha, Diman Zad Tootaghaj, Dolat Jamshidi
KEYWORDS:
Partial Discharge, Discrete Wavelet Transform, Time-Of-Arrival, Rotating Machines, De-Noising, Coupling Capacitor
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.1 No.2,
June
24,
2009
ABSTRACT: This paper introduces a new method to separate PD1 from other disturbing signals present on the high voltage genera-tors and motors. The method is based on combination of a pattern classifier, the Discrete Wavelet Transform (DWT), to de-noise PD and Time-Of-Arrival method to separate PD sources. Furthermore, it will be shown that it can recognize PD sources including rotating machine’s internal and external discharge pulses (e.g. on the bus bar).